ALright, long story short, i stripped the bolt for the silencer (and still used it) on my '90 YZ80 and then i lost the slinecer somwheres. Anyway, my question is can i get a stock silencer for my bike or would it be worth it to get an aftermarket one? I would problably get an FMF powercore because they're only $75. I do alot of woods riding also, so maybe it would be better to get a spark arrester? Would it be possible to make a spark arrester? Like just make a steel endcap design like one? What do all of you guys (and girls) have on your 80's? And would a new pipe be worth the investment?